1. National sand study for Sri Lanka, vols. 1 and 2. Final Report, Phase 1, Delft Hydraulics; 1992.
2. The analysis of proposed change and stakeholder response – a case study;Dias;Civil Environ Eng Syst,2000
3. Dias WPS, Nanayakkara SMA, Perera AADAJ, Sahayan SJM, Sathyaprasad IMS. Alternatives for river sand (interim sand study). Department of Civil Engineering, University of Moratuwa; 1999.
4. National practices and regulations in the extraction of marine sand and gravel, Ch. 3 in Sandpit Book. .
5. Fookes PG, Higginbottom IE. Some problems of construction aggregates in desert areas, with particular reference to the Arabian Peninsula: part 1 – occurrence and special characteristics. In: Proc. institution of civil engineers, Part 1, February 1980, p. 39–67.